Examples of IZooReaderWriter

Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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  public static void main(String[] args) throws Exception {
    String rootDir = args[0];
    File reportDir = new File(args[1]);
   
    IZooReaderWriter zoo = ZooReaderWriter.getInstance();
   
    if (zoo.exists(rootDir)) {
      zoo.recursiveDelete(rootDir, NodeMissingPolicy.FAIL);
    }
   
    if (!reportDir.exists()) {
      reportDir.mkdir();
    } else {
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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  static String getNextTableId(String tableName, Instance instance) throws ThriftTableOperationException {
   
    String tableId = null;
    try {
      IZooReaderWriter zoo = ZooReaderWriter.getRetryingInstance();
      final String ntp = ZooUtil.getRoot(instance) + Constants.ZTABLES;
      byte[] nid = zoo.mutate(ntp, ZERO_BYTE, ZooUtil.PUBLIC, new Mutator() {
        @Override
        public byte[] mutate(byte[] currentValue) throws Exception {
          BigInteger nextId = new BigInteger(new String(currentValue, Constants.UTF8), Character.MAX_RADIX);
          nextId = nextId.add(BigInteger.ONE);
          return nextId.toString(Character.MAX_RADIX).getBytes(Constants.UTF8);
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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  public static long reserveTable(String tableId, long tid, boolean writeLock, boolean tableMustExist, TableOperation op) throws Exception {
    if (getLock(tableId, tid, writeLock).tryLock()) {
      if (tableMustExist) {
        Instance instance = HdfsZooInstance.getInstance();
        IZooReaderWriter zk = ZooReaderWriter.getRetryingInstance();
        if (!zk.exists(ZooUtil.getRoot(instance) + Constants.ZTABLES + "/" + tableId))
          throw new ThriftTableOperationException(tableId, "", op, TableOperationExceptionType.NOTFOUND, "Table does not exists");
      }
      log.info("table " + tableId + " (" + Long.toHexString(tid) + ") locked for " + (writeLock ? "write" : "read") + " operation: " + op);
      return 0;
    } else
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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    Instance instance = HdfsZooInstance.getInstance();

    String resvPath = ZooUtil.getRoot(instance) + Constants.ZHDFS_RESERVATIONS + "/"
        + new String(Base64.encodeBase64(directory.getBytes(Constants.UTF8)), Constants.UTF8);

    IZooReaderWriter zk = ZooReaderWriter.getRetryingInstance();
   
    if (ZooReservation.attempt(zk, resvPath, String.format("%016x", tid), "")) {
      return 0;
    } else
      return 50;
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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    if (force) {
      String tserver = AddressUtil.toString(server.getLocation());
      String path = ZooUtil.getRoot(master.getInstance()) + Constants.ZTSERVERS + "/" + tserver;
      ZooLock.deleteLock(path);
      path = ZooUtil.getRoot(master.getInstance()) + Constants.ZDEADTSERVERS + "/" + tserver;
      IZooReaderWriter zoo = ZooReaderWriter.getInstance();
      zoo.putPersistentData(path, "forced down".getBytes(Constants.UTF8), NodeExistsPolicy.OVERWRITE);
      return null;
    }
   
    // TODO move this to isReady() and drop while loop? - ACCUMULO-1259
    Listener listener = master.getEventCoordinator().getListener();
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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  public long isReady(long tid, Master master) throws Exception {
   
    String zCancelID = Constants.ZROOT + "/" + HdfsZooInstance.getInstance().getInstanceID() + Constants.ZTABLES + "/" + tableId
        + Constants.ZTABLE_COMPACT_CANCEL_ID;
   
    IZooReaderWriter zoo = ZooReaderWriter.getRetryingInstance();
   
    if (Long.parseLong(new String(zoo.getData(zCancelID, null))) >= compactId) {
      // compaction was canceled
      throw new ThriftTableOperationException(tableId, null, TableOperation.COMPACT, TableOperationExceptionType.OTHER, "Compaction canceled");
    }

    MapCounter<TServerInstance> serversToFlush = new MapCounter<TServerInstance>();
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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    return true;
  }
 
  @Override
  public void initializeSecurity(TCredentials itw, String rootuser) throws AccumuloSecurityException {
    IZooReaderWriter zoo = ZooReaderWriter.getRetryingInstance();
   
    // create the root user with all system privileges, no table privileges, and no record-level authorizations
    Set<SystemPermission> rootPerms = new TreeSet<SystemPermission>();
    for (SystemPermission p : SystemPermission.values())
      rootPerms.add(p);
    Map<String,Set<TablePermission>> tablePerms = new HashMap<String,Set<TablePermission>>();
    // Allow the root user to flush the !METADATA table
    tablePerms.put(Constants.METADATA_TABLE_ID, Collections.singleton(TablePermission.ALTER_TABLE));
   
    try {
      // prep parent node of users with root username
      if (!zoo.exists(ZKUserPath))
        zoo.putPersistentData(ZKUserPath, rootuser.getBytes(Constants.UTF8), NodeExistsPolicy.FAIL);
     
      initUser(rootuser);
      zoo.putPersistentData(ZKUserPath + "/" + rootuser + ZKUserAuths, ZKSecurityTool.convertAuthorizations(Constants.NO_AUTHS), NodeExistsPolicy.FAIL);
    } catch (KeeperException e) {
      log.error(e, e);
      throw new RuntimeException(e);
    } catch (InterruptedException e) {
      log.error(e, e);
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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    }
  }
 
  @Override
  public void initUser(String user) throws AccumuloSecurityException {
    IZooReaderWriter zoo = ZooReaderWriter.getRetryingInstance();
    try {
      zoo.putPersistentData(ZKUserPath + "/" + user, new byte[0], NodeExistsPolicy.SKIP);
    } catch (KeeperException e) {
      log.error(e, e);
      throw new AccumuloSecurityException(user, SecurityErrorCode.CONNECTION_ERROR, e);
    } catch (InterruptedException e) {
      log.error(e, e);
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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  @Override
  public void dropUser(String user) throws AccumuloSecurityException {
    try {
      synchronized (zooCache) {
        IZooReaderWriter zoo = ZooReaderWriter.getRetryingInstance();
        zoo.recursiveDelete(ZKUserPath + "/" + user + ZKUserAuths, NodeMissingPolicy.SKIP);
        zooCache.clear(ZKUserPath + "/" + user);
      }
    } catch (InterruptedException e) {
      log.error(e, e);
      throw new RuntimeException(e);
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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  @Override
  public Repo<Master> call(final long tid, Master environment) throws Exception {
    String zTablePath = Constants.ZROOT + "/" + HdfsZooInstance.getInstance().getInstanceID() + Constants.ZTABLES + "/" + tableId + Constants.ZTABLE_COMPACT_ID;
   
    IZooReaderWriter zoo = ZooReaderWriter.getRetryingInstance();
    byte[] cid;
    try {
      cid = zoo.mutate(zTablePath, null, null, new Mutator() {
        @Override
        public byte[] mutate(byte[] currentValue) throws Exception {
          String cvs = new String(currentValue, Constants.UTF8);
          String[] tokens = cvs.split(",");
          long flushID = Long.parseLong(tokens[0]);
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